What indicates a failed forceps delivery?

A failed forceps delivery is indicated when the fetus is undelivered after three pulls with no descent. This criterion is critical because it reflects the effectiveness of the forceps in aiding the descent of the fetal head through the birth canal. The use of forceps is meant to assist in delivering the fetus, and if after a maximum of three attempts there is no progress (indicated by no descent), it suggests that the forceps are not functioning as intended for the specific clinical scenario.

In this situation, it may reflect factors such as the positioning of the fetus, the condition of the cervix, or the size of the fetal head relative to the pelvic outlet, all of which can lead to a conclusion that further attempts are likely to be ineffective or may even increase the risk of maternal or fetal complications. Therefore, after assessing for a lack of descent through three attempts, it is generally recommended to proceed with an alternative method of delivery, such as cesarean section, to ensure the safety and well-being of both the mother and the fetus.